A new primitive Neornithischian dinosaur from the Jurassic of Patagonia with gut contents
Registro en:
Salgado, Leonardo., Canudo, José I., Garrido, Alberto C., Moreno Azanza, Miguel., Martinez, Leandro C. & et al. (2017). A new primitive Neornithischian dinosaur from the Jurassic of Patagonia with gut contents. Nature Publishing Group. Scientific Reports; 7; 1-10
2045-2322
Autor
Salgado, Leonardo
Canudo, José Ignacio
Garrido, Alberto Carlos
Moreno Azanza, Miguel
Martinez, Leandro C.
Coria, Rodolfo Anibal
Gasca Pérez, José M.
Institución
Resumen
Fil: Salgado, Leonardo. Universidad Nacional de Río Negro. Sede Alto Valle; Argentina Fil: Salgado, Leonardo. Instituto de Investigaciones en Paleobiología y Geología; Argentina Fil: Canudo, José I. Universidad de Zaragoza; España Fil: Garrido, Alberto C. Provincia de Neuquén. Ministerio de Energía, Ambiente y Servicios Públicos. Dirección Provincial de Minería. Museo Provincial de Ciencias Naturales Prof. "Dr. Juan A. Olsacher"; Argentina. Fil: Garrido, Alberto C. Universidad Nacional del Comahue; Argentina Fil: Moreno Azanza, Miguel. Universidade Nova Da Lisboa; Portugal Fil: Martinez, Leandro C. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Fil: Martinez, Leandro C. Universidad Nacional de La Plata; Argentina Fil: Coria, Rodolfo A. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Fil: Coria, Rodolfo A. Provincia del Neuquén. Municipalidad de Plaza Huincul. Museo "Carmen Funes"; Argentina Fil: Gasca Pérez, José M. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Fil: Gasca Pérez, José M. Provincia de Neuquén. Ministerio de Energía, Ambiente y Servicios Públicos. Dirección Provincial de Minería. Museo Provincial de Ciencias Naturales Prof. "Dr. Juan A. Olsacher"; Argentina true We describe a new species of an ornithischian dinosaur, Isaberrysaura mollensis gen. et sp. nov. The specimen, consisting in an almost complete skull and incomplete postcranium was collected from the marine-deltaic deposits of the Los Molles Formation (Toarcian-Bajocian), being the first reported dinosaur for this unit, one of the oldest from Neuquén Basin, and the first neornithischian dinosaur known from the Jurassic of South America. Despite showing a general stegosaurian appearance, the extensive phylogenetic analysis carried out depicts Isaberrysaura mollensis gen. et sp. nov. as a basal ornithopod, suggesting that both Thyreophora and neornithischians could have achieved significant convergent features. The specimen was preserved articulated and with some of its gut content place in the middle-posterior part of the thoracic cavity. Such stomach content was identified as seeds, most of them belonging to the Cycadales group. This finding reveals a possible and unexpected role of this ornithischian species as seed-dispersal agent.